CLA-VAL 690-21 UL Installation Operation & Maintenance Download Page 16

Pressure Reducing Control

(Bronze Body with 303SS Trim)

*SUGGESTED REPAIR PARTS

CRD

3 1/8

PRESSURE SETTING

ADJUSTING SCREW

(TURN CLOCKWISE

TO INCREASE SETTING

SECTION A-A

OPEN POSTION

FOR HIGH PRESSURE CONTROL

5 3/8

1 13/16

inlet

B

13

14

16

18

17

12

11

10

9

8

5

3

1

2

cover vent

B

3/8" NPT

16

19

Body and Disc

Retainer Detail

for Low Pressure 

Control

SECTION B-B

CLOSED POSITION

20

18

17

15

4

A

A

6

7

When ordering parts specify:

• All nameplate data

• Item Description

• Item number

CLA-VAL

        

Copyright Cla-Val 2019  Printed in USA   Specifications subject to change without notice.

   1701 Placentia Ave 

 Costa Mesa CA 92627 Phone: 949-722-4800 

 Fax: 949-548-5441 

 E-mail: [email protected] 

 www.cla-val.com

©

PL-CRD (R-09/2019)

PARTS LIST

Size

(inch)

Stock

Number

Adjustment Range

psi

Ft of Water

3/8

7194307A 2 - 6.5

4.5 - 15

3/8

7194308J

2 - 30

4.5 - 69

3/8

7194303K 15 - 75 35 - 173

3/8

7194311C 20 - 105 46 - 242

3/8

7194304H 30 - 300 69 - 692

Factory Set Pressure

PSI per Turn

*

2 - 6.5 set @ 3.5 psi

.61

2 - 30 set @ 10 psi

3.0

15 - 75 set @ 20 psi

9.0

20 - 105 set @ 60 psi

12.0

30 - 300 set @ 60 psi

27.0

*Approximate-Final Adjustment should be 

with a pressure gauge and with flow.

Item

Description

Material

Part Number

1

Cap

PL

67628J

2

Adjusting Screw

BRS

7188201D

3

Jam Nut (3/8-16)

SS

6780106J

4*

Machine Screw (Fil.Hd.) 8 Req'd

303

6757821B

5

Cover

BRS

C2544K

6

Nameplate Screw

SS

67999D

7

Nameplate

BRS

C0022001G

8

Spring Guide

302

71881H

Spring Guide  (20 - 105 psi)

303

205620F

9

Spring (15-75 psi)

CHR/VAN

71884B

Spring (2 - 6.5 psi)

SS

82575C

Spring (2 - 30 psi)

SS

81594E

Spring (20 - 105 psi)

316

20632101E

Spring (30 - 300 psi)

CHR/VAN

71885J

10

Hex Nut

303

71883D

11

Diaphragm Washer

302

71891G

12*

Diaphragm

NBR

C6936D

13

Plug, Body

BRS

V5653A

14*

Gasket

Fiber

40174F

15

Plug

BRS

6766003F

16*

Disc Retainer Assy. (2 - 30 psi)

SS/Rub

C8348K

Disc Retainer Assy. (15 - 75 psi)

SS/Rub

37133G

Disc Retainer Assy. (20 - 105 psi)

SS/Rub

37133G

Disc Retainer Assy. (30 - 300 psi)

SS/Rub

37133G

17

Yoke

VBZ

V6951H

18

Body & 1/4" Seat Assy

BR/SS

8339702G

19*

Bucking Spring (2 - 6.5 psi)(2 - 30psi) 302

V0558G

20

Belleville Washer

STL

7055007E

*

Repair Kit (No Bucking Spring)

Buna

®

-N

9170003K

*

Repair Kit (with Bucking Spring)

Buna

®

-N

9170002B

Summary of Contents for 690-21 UL

Page 1: ...90 21...

Page 2: ...e valve during pressure adjustments Optimum valve performance occurs when pressure setting is done with flow rate as low as practical 8 Adjust the CRD Control 3 to desired pressure To change pressure...

Page 3: ...nd Larger Globe or Angle PIPE PLUG HEX NUT 8 and Larger Cover Bolt 6 and Smaller FLAT WASHER FLAT WASHER Hytrol maIN ValVe 1 inlet Cover vent 3 8 NPT Cap Adjusting Screw Jam Nut Cover Spring Hex Nut B...

Page 4: ...R RP 2 8 16 S AV 9 5 19 NO BASIC COMPONENTS QTY 1 100 01KX HYTROL MAIN VALVE 1 2 X58C RESTRICTION ASSEMBLY 1 3 CRD PRESSURE REDUCING CONTROL SEE NOTE 1 4 X46A FLOW CLEAN STRAINER 1 NO OPTIONAL FEATURE...

Page 5: ...Valve When outlet pressure is higher than inlet pressure check valve D1 opens and check valve D2 closes This directs the higher outlet pressure into the main valve cover and the main valve closes P Pr...

Page 6: ...1 1 2 3 300S Globe 1 1 2 12 300F Angle 1 1 2 12 150A Angle 1 1 2 3 300S Angle 1 1 2 12 300F ULC Listed Ductile iron valve Class 150 250 psi max Class 300 300 psi max Pattern Size P C Globe 10 12 150F...

Page 7: ...ing the cover The Hytrol valve has only one moving part the diaphragm and disc assembly So there are only three major types of problems to be considered First Valve is stuck that is the diaphragm asse...

Page 8: ...shown there is a good reason to believe something is mechanically restricting the stroke of the valve The cover must be removed and the obstruction located and re moved The stem should also be checke...

Page 9: ...rap rather than a steady pull Usually several blows are sufficient to loosen the nut for further removal On the smaller valves the entire diaphragm assembly can be held by the stem in a vise equipped...

Page 10: ...11 15 23 TOP VIEW 8 24 SEAT DETAIL 1 1 4 6 SEAT DETAIL 4 24 2 25 13 14 3 Item Description 1 Pipe Plug 2 Drive Screws for nameplate 3 Hex Nut 8 and larger 4 Stud 8 and larger 5 Cover Bearing 6 Cover 7...

Page 11: ...TROL SETPOINT AT 30 PSI INLET PRES SURES FROM 75 TO 300 PSI THE RECORDED OUTLET PRESSURE AT ZERO FLOW RANGED BETWEEN 35 TO 38 PSI WITH OUTLET PRESSURE CONTROL SETPOINT AT 165 PSI INLET PRES SURE AT 30...

Page 12: ...ROPS BELOW OUTLET PRESSURE SET POINT Inlet 155 Outlet Setting 165 psi Inlet 100 psi Outlet Setting 165 psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 200 150 100 50 0 0 25...

Page 13: ...URE SET POINT 6 90G 21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT Inlet 155 psi Outlet Setting 165 psi Inlet 100 psi Outlet Setting 165 psi Inlet 50 psi Outlet Settin...

Page 14: ...TLET PRESSURE SET POINT 12 90G 21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT 0 25 50 75 100 125 150 175 200 0 250 500 750 1000 1250 1500 1750 OUTLET PRESSURE PSI FLOW...

Page 15: ...oms 2 Install gasket 14 and spring 19 for 2 30 and 2 6 5 psi range onto plug 13 and fasten into body Disc retainer must enter guide hole in plug as it is assembled Screw the plug in by hand Use wrench...

Page 16: ...0 set 10 psi 3 0 15 75 set 20 psi 9 0 20 105 set 60 psi 12 0 30 300 set 60 psi 27 0 Approximate Final Adjustment should be with a pressure gauge and with flow Item Description Material Part Number 1 C...

Page 17: ...3 4 1 2 1 3 8 7 8 Flow Clean Strainer X46 INSPECTION Inspect internal and external threads for damage or evidence of cross threading Check inner and outer screens for clogging embedded foreign particl...

Page 18: ...t to properly identify Cla Val products already in service Include all nameplate data with your inquiry Pertinent product data includes valve function size material pressure rating end details type of...

Page 19: ...ves the right to refuse the return of any products 3 Products more than six 6 months old cannot be returned for cred it 4 Specially produced non standard models cannot be returned for credit 5 Rubber...

Page 20: ...nsult factory for larger sizes BUNA N MATERIAL RUBBER KIT REPAIR KIT REBUILD ASSEMBLY STUD NUT KIT STOCK NO STOCK NO STOCK NO STOCK NO 3 9169805A 21176608K 21176618H 21176637E 4 9169812G 21176604D 211...

Page 21: ...0210903K 20 N A 20210907F 24 N A 20210907F BUNA N Standard Material VITON For KB Controls Pilot Control Kit Stock Number Pilot Control Kit Stock Number Pilot Control Kit Stock Number CDB 9170006C CFM...

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